Pair page
Thymalin with Thymosin Alpha-1
Mechanism-tag overlap and published literature for Thymalin and Thymosin Alpha-1, pulled verbatim from each Kalios compound profile. Kalios is a literature reference, not a recommendation.
Mechanism overlap
Mechanism tags are verbatim labels on each compound's profile. Generic tags ("peptide", "small-molecule", "research-chemical") are excluded from this overlap view. Tags are descriptive — not an inference about combined effect.
thymic-polypeptide-bioregulator-complex
endogenous-thymic-immunomodulator
Co-administration notes from the literature
Verbatim summary text pulled from each compound's profile data. Researchers studying Thymalin and Thymosin Alpha-1 have published these mechanism-level observations. Not a co-administration recommendation.
The defined-structure 28-amino-acid thymic peptide. Mechanistically overlapping with Thymalin (T-cell maturation, NK restoration, dendritic cell modulation) but pharmacologically and regulatorily distinct: Tα1 is a single synthetic molecule with FDA orphan-drug status and broad ex-US approvals, suitable where defined-structure characterization is required. Some research-context protocols pair the two for additive thymopoietic effect — Tα1 providing the defined receptor-engaging single peptide, Thymalin providing the polypeptide-complex multi-target signal. Mechanism overlap means combination should be approached cautiously to avoid over-stimulation in active autoimmune contexts.
Khavinson polypeptide thymic extract, mechanistically overlapping but molecularly distinct. Some practitioners cycle the two for immune reconstitution; combined-use evidence is anecdotal.
Quick facts
Thymalin
Thymosin Alpha-1
Literature table
Classified references from each compound profile. Click a column header to sort. Click a PMID to open PubMed. Findings are quoted verbatim from each profile's literature_summary; nothing here is added or interpreted.
| Year | Compound | Source | Finding |
|---|---|---|---|
| 2021 | Thymalin | Khavinson VK, Kuznik BI, Tarnovskaya SI, Linkova NS. Results and Prospects of Using Activator of Hematopoietic Stem Cell Differentiation in Complex Therapy for Patients with COVID-19. Stem Cell Rev Rep. 2021 Feb;17(1):285-290. doi: 10.1007/s12015-020-10087-6. PMID: 33575961. (Re… PMID 33575961 | human study |
| 2020 | Thymalin | Khavinson V, Linkova N, Dyatlova A, Kuznik B, Umnov R. Peptides: Prospects for Use in the Treatment of COVID-19. Molecules. 2020 Sep 24;25(19):4389. doi: 10.3390/molecules25194389. PMID: 32987757. (Computational and mechanistic review of Khavinson short peptides — including the… PMID 32987757 | human study |
| 2020 | Thymalin | Khavinson VK, Kuznik BI, Volchkov VA, Rukavishnikova SA, Titova ON, Akhmedov TA, Trofimova SV, Ryzhak GA, Potyomkin VV, Saginbaev UR. Effect of thymalin on adaptive immunity in complex therapy for patients with COVID-19. Klinicheskaya Meditsina (Russian Journal). 2020;98(8):593-… | human study |
| 2020 | Thymalin | Lukyanov SA, Kuznik BI, Shapovalov KG, Khavinson VK, Smolyakov YN, et al. Thymalin as a Potential Alternative in the Treatment of Severe Acute Respiratory Infection Associated with SARS-CoV-2. Int J Immunol Immunother. 2020;7:055. (Severe-COVID-19 case treated with Thymalin 10 m… | human study |
| 2003 | Thymalin | Khavinson VKh, Morozov VG. Peptides of pineal gland and thymus prolong human life. Neuro Endocrinol Lett. 2003 Jun-Aug;24(3-4):233-240. PMID: 14523363. (266-patient elderly geroprotective trial; 6–8-year follow-up; mortality reductions of 2.0-fold for Thymalin alone, 2.5-fold fo… PMID 14523363 | human study |
| 1986 | Thymalin | Kuznik BI, Makhakova GCh, Morozov VG, Pisarevskaia LI, Khavinson VKh. [Effect of thymalin on thrombocyte aggregation and the antiaggregation activity of the vascular wall in intact and thymectomized rats]. Biull Eksp Biol Med. 1986 Aug;102(8):200-202. Russian. PMID: 3754821. (Ea… PMID 3754821 | preclinical, in vivo |
| 1982 | Thymalin | Anisimov VN, Khavinson VKh, Morozov VG. Carcinogenesis and aging. IV. Effect of low-molecular-weight factors of thymus, pineal gland and anterior hypothalamus on immunity, tumor incidence and life span of C3H/Sn mice. Mech Ageing Dev. 1982 Jul;19(3):245-258. doi: 10.1016/0047-63… | preclinical, in vivo |
| 2022 | Thymalin | Avolio F, Martinotti S, Khavinson VK, Esposito JE, Giambuzzi G, Marino A, Mironova E, Pulcini R, Robuffo I, Bologna G, Simeone P, Lanuti P, Guarnieri S, Trofimova S, Procopio AD, Toniato E. Peptides Regulating Proliferative Activity and Inflammatory Pathways in the Monocyte/Macr… PMID 35408963 | preclinical, in vitro |
| 2020 | Thymalin | Khavinson VK, Linkova NS, Kvetnoy IM, Polyakova VO, Drobintseva AO, Kvetnaya TV, Ivko OM. Thymalin: Activation of Differentiation of Human Hematopoietic Stem Cells. Bull Exp Biol Med. 2020 Nov;170(1):118-122. doi: 10.1007/s10517-020-05016-z. PMID: 33237528. (In vitro demonstrati… PMID 33237528 | preclinical, in vitro |
| 2016 | Thymalin | Linkova NS, Drobintseva AO, Orlova OA, Kuznetsova EP, Polyakova VO, Kvetnoy IM, Khavinson VK. Peptide Regulation of Skin Fibroblast Functions during Their Aging In Vitro. Bull Exp Biol Med. 2016 May;161(1):175-178. doi: 10.1007/s10517-016-3370-x. PMID: 27259484. (Khavinson short… PMID 27259484 | preclinical, in vitro |
| 2017 | Thymalin | Khavinson V, Popovich I. Short Peptides Regulate Gene Expression, Protein Synthesis and Enhance Life Span. In: Vaiserman AM (ed.). Anti-aging Drugs: From Basic Research to Clinical Practice. RSC Drug Discovery Series No. 57. Royal Society of Chemistry; 2017. Chapter 20, pp. 496–… | mechanism / discovery |
| 2016 | Thymalin | Khavinson VK, Lin'kova NS, Tarnovskaya SI. Short Peptides Regulate Gene Expression. Bull Exp Biol Med. 2016 Nov;162(2):288-292. doi: 10.1007/s10517-016-3596-7. PMID: 27909961. (Khavinson group's short-peptide DNA-binding / gene-expression-regulation hypothesis, the mechanistic f… PMID 27909961 | mechanism / discovery |
| 2009 | Thymosin Alpha-1 | Zhang YY, Chen EQ, Yang J, Duan YR, Tang H. Treatment with thymosin alpha-1 for chronic hepatitis B: a meta-analysis. J Viral Hepat. 2009;16(6):448-458. PMID: 19243498. PMID 19243498 | meta-analysis |
| 2013 | Thymosin Alpha-1 | Wu J, Zhou L, Liu J, Ma G, Kou Q, He Z, Chen J, Ou-Yang B, Chen M, Li Y, Wu X, Gu B, Chen L, Zou Z, Qiang X, Chen Y, Lin A, Zhang G, Guan X. The efficacy of thymosin alpha 1 for severe sepsis (ETASS): a multicenter, single-blind, randomized and controlled trial. Crit Care. 2013;… PMID 23327199 | human trial |
| 2010 | Thymosin Alpha-1 | Maio M, Mackiewicz A, Testori A, Trefzer U, Ferraresi V, Jassem J, Garbe C, Lesimple T, Guillot B, Gascon P, Gilde K, Camerini R, Cognetti F; Italian Melanoma Intergroup. Large randomized study of thymosin alpha 1, interferon alfa, or both in combination with dacarbazine in pati… PMID 20194853 | human trial |
| 2005 | Thymosin Alpha-1 | Iino S, Toyota J, Kumada H, Kiyosawa K, Kakumu S, Sata M, Suzuki H, Martins EB. The efficacy and safety of thymosin alpha-1 in Japanese patients with chronic hepatitis B; results from a randomized clinical trial. J Viral Hepat. 2005;12(3):300-306. PMID: 15850471. PMID 15850471 | human trial |
| 1998 | Thymosin Alpha-1 | Chien RN, Liaw YF, Chen TJ, Yeh CT, Sheen IS. Efficacy of thymosin alpha1 in patients with chronic hepatitis B: a randomized, controlled trial. Hepatology. 1998;27(5):1383-1387. PMID: 9581695. PMID 9581695 | human trial |
| 1989 | Thymosin Alpha-1 | Gravenstein S, Duthie EH, Miller BA, Roecker E, Drinka P, Prathipati K, Ershler WB. Augmentation of influenza antibody response in elderly men by thymosin alpha one. A double-blind placebo-controlled clinical study. J Am Geriatr Soc. 1989;37(1):1-8. PMID: 2642485. PMID 2642485 | human trial |
| 2008 | Thymosin Alpha-1 | Poo JL, Sánchez Ávila F, Kershenobich D, García Samper X, Torres-Ibarra R, Gongora J, Cano C, Parana R, Wiegand J, Schiff E, Rodriguez V, Uribe M. Triple combination of peginterferon alpha-2a, ribavirin and thymosin alpha-1 as rescue therapy for non-responders and relapsers to p… PMID 19034240 | human study |
| 2003 | Thymosin Alpha-1 | Saruc M, Ozden N, Turkel N, Ayhan S, Hock LM, Tuzcuoglu I, Yuceyar H. Long-term outcomes of thymosin-alpha 1 and interferon alpha-2b combination therapy in patients with hepatitis B e antigen (HBeAg) negative chronic hepatitis B. J Pharm Sci. 2003;92(7):1386-1395. PMID: 12820143. PMID 12820143 | human study |
| 1977 | Thymosin Alpha-1 | Goldstein AL, Low TL, McAdoo M, McClure J, Thurman GB, Rossio J, Lai CY, Chang D, Wang SS, Harvey C, Ramel AH, Meienhofer J. Thymosin α1: isolation and sequence analysis of an immunologically active thymic polypeptide. Proc Natl Acad Sci USA. 1977;74(2):725-729. PMID: 265536. PMID 265536 | mechanism / discovery |
| 2017 | Thymosin Alpha-1 | Matteucci C, Grelli S, Balestrieri E, Minutolo A, Argaw-Denboba A, Macchi B, Sinibaldi-Vallebona P, Perno CF, Mastino A, Garaci E. Thymosin alpha 1 and HIV-1: recent advances and future perspectives. Future Microbiol. 2017;12:141-155. PMID: 28004573. PMID 28004573 | review |
| 2015 | Thymosin Alpha-1 | Camerini R, Garaci E. Historical review of thymosin α 1 in infectious diseases. Expert Opin Biol Ther. 2015;15 Suppl 1:S117-127. PMID: 26098874. PMID 26098874 | review |
| 2019 | Thymosin Alpha-1 | Liu Y, Pan Y, Hu Z, Wu M, Wang C, Feng Z, Mao C, Tan Y, Liu Y, Chen L, Li M, Wang G, Yuan Z, Diao B, Wu Y, Chen Y. Thymosin alpha 1 reduces the mortality of severe coronavirus disease 2019 by restoration of lymphocytopenia and reversion of exhausted T cells. Clin Infect Dis. 202… PMID 32442267 | research article |
Related pair pages
More research context
Frequently asked
Have Thymalin and Thymosin Alpha-1 been studied together?
Researchers have published mechanistic-level co-administration discussion of Thymalin and Thymosin Alpha-1. No human co-administration trials are catalogued in the Kalios profiles. The pair page lists each compound's classified literature; full citations sit on each individual profile.
What mechanisms do Thymalin and Thymosin Alpha-1 share?
Thymalin and Thymosin Alpha-1 do not share a specific mechanism tag on their Kalios profiles. They appear on the same pair page because at least one profile lists the other in its co-administration data.
What is the FDA status of Thymalin and Thymosin Alpha-1?
Thymalin: Not approved (US). Thymosin Alpha-1: Not approved (US). FDA-status text is pulled verbatim from each compound profile. See /fda-pcac-2026.html for the broader FDA Pharmacy Compounding Advisory Committee context.
Where can I find the full research on Thymalin and Thymosin Alpha-1?
Full citation lists, dosing tables from the literature, reconstitution data, and the FDA / WADA status are on the individual compound profiles: the Thymalin profile and the Thymosin Alpha-1 profile. The Kalios Stack Research Tool hub lists every compound covered.
Last updated: April 2026